<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>Converts a date into a string.</title>

 </head>
 <body><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="function.px-create-fp.html">px_create_fp</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="function.px-delete-record.html">px_delete_record</a></div>
 <div class="up"><a href="ref.paradox.html">Paradox 函数</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="function.px-date2string" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">px_date2string</h1>
  <p class="verinfo">(PECL paradox &gt;= 1.4.0)</p><p class="refpurpose"><span class="refname">px_date2string</span> &mdash; <span class="dc-title">
   Converts a date into a string.
  </span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.px-date2string-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">string</span> <span class="methodname"><strong>px_date2string</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$pxdoc</code></span>
   , <span class="methodparam"><span class="type">int</span> <code class="parameter">$value</code></span>
   , <span class="methodparam"><span class="type">string</span> <code class="parameter">$format</code></span>
   )</div>


  <p class="para rdfs-comment">
   Turns a date as it stored in the paradox file into human readable
   format. Paradox dates are the number of days since 1.1.0000.
   This function is just for convenience. It can be easily replaced by some
   math and the calendar functions as demonstrated in the example below.
  </p>

 </div>

 <div class="refsect1 parameters" id="refsect1-function.px-date2string-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">pxdoc</code></em></dt>

     <dd>

      <p class="para">
       Resource identifier of the paradox database
       as returned by <span class="function"><a href="function.px-new.html" class="function">px_new()</a></span>.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">value</code></em></dt>

     <dd>

      <p class="para">
       Value as stored in paradox database field of type
       PX_FIELD_DATE.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">format</code></em></dt>

     <dd>

      <p class="para">
        String format similar to the format used by <span class="function"><a href="function.date.html" class="function">date()</a></span>.
        The placeholders support by this function is a subset of those
        supported by <span class="function"><a href="function.date.html" class="function">date()</a></span> (Y, y, m, n, d, j, L).
      </p>
     </dd>

    
   </dl>

  </p>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-function.px-date2string-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>


 


 


 <div class="refsect1 examples" id="refsect1-function.px-date2string-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-2008">
    <p><strong>Example #1 Turn a paradox date into a human readable form</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$px&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">px_new</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">/*&nbsp;make&nbsp;up&nbsp;a&nbsp;date&nbsp;as&nbsp;it&nbsp;could&nbsp;be&nbsp;stored&nbsp;in&nbsp;*/<br />/*&nbsp;a&nbsp;date&nbsp;field&nbsp;of&nbsp;a&nbsp;paradox&nbsp;db.&nbsp;*/<br />/*&nbsp;700000&nbsp;days&nbsp;since&nbsp;1.1.0000.&nbsp;*/<br /></span><span style="color: #0000BB">$days&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">700000</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">/*&nbsp;Use&nbsp;the&nbsp;calendar&nbsp;functions&nbsp;to&nbsp;print&nbsp;a&nbsp;*/<br />/*&nbsp;human&nbsp;readable&nbsp;format&nbsp;of&nbsp;the&nbsp;date&nbsp;*/<br /></span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">jdtogregorian</span><span style="color: #007700">(</span><span style="color: #0000BB">$days</span><span style="color: #007700">+</span><span style="color: #0000BB">1721425</span><span style="color: #007700">).</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /></span><span style="color: #FF8000">/*&nbsp;px_date2string()&nbsp;outputs&nbsp;the&nbsp;same&nbsp;*/<br /></span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">px_date2string</span><span style="color: #007700">(</span><span style="color: #0000BB">$px</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$days</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"n/d/Y"</span><span style="color: #007700">).</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">px_delete</span><span style="color: #007700">(</span><span style="color: #0000BB">$px</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
7/15/1917
7/15/1917
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.px-date2string-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.px-timestamp2string.html" class="function" rel="rdfs-seeAlso">px_timestamp2string()</a> - Converts the timestamp into a string.</span></li>
    <li class="member"><span class="function"><a href="function.jdtogregorian.html" class="function" rel="rdfs-seeAlso">jdtogregorian()</a> - 转变一个Julian Day计数为Gregorian历法日期</span></li>
   </ul>
  </p>
 </div>



</div><hr /><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="function.px-create-fp.html">px_create_fp</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="function.px-delete-record.html">px_delete_record</a></div>
 <div class="up"><a href="ref.paradox.html">Paradox 函数</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
